linux-kernel - Re: [PATCH RFC v5 1/8] media: qcom: iris: move sm8250 to gen1 catalog

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Message-ID: <7b664533-ca6c-4d4a-a793-0c3961724d09@oss.qualcomm.com>
Date: Mon, 14 Apr 2025 12:28:31 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: neil.armstrong@...aro.org
Cc: Vikash Garodia <quic_vgarodia@...cinc.com>,
        Dikshita Agarwal <quic_dikshita@...cinc.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH RFC v5 1/8] media: qcom: iris: move sm8250 to gen1 catalog

On 14/04/2025 12:07, Neil Armstrong wrote:
> On 14/04/2025 09:39, Dmitry Baryshkov wrote:
>> On Fri, Apr 11, 2025 at 10:14:02AM +0200, Neil Armstrong wrote:
>>> On 10/04/2025 21:44, Dmitry Baryshkov wrote:
>>>> On Thu, Apr 10, 2025 at 06:30:00PM +0200, Neil Armstrong wrote:
>>>>> Re-organize the platform support core into a gen1 catalog C file
>>>>> declaring common platform structure and include platform headers
>>>>> containing platform specific entries and iris_platform_data
>>>>> structure.
>>>>>
>>>>> The goal is to share most of the structure while having
>>>>> clear and separate per-SoC catalog files.
>>>>>
>>>>> The organization is based on the current drm/msm dpu1 catalog
>>>>> entries.
>>>>>
>>>>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>>>>> ---
>>>>>    drivers/media/platform/qcom/iris/Makefile          |  2 +-
>>>>>    .../media/platform/qcom/iris/iris_catalog_gen1.c   | 83 ++++++++ 
>>>>> ++++++++++++++
>>>>>    ...ris_platform_sm8250.c => iris_catalog_sm8250.h} | 80 + 
>>>>> +-------------------
>>>>
>>>> I'd suggest _not_ to follow DPU here. I like the per-generation files,
>>>> but please consider keeping platform files as separate C files too.
>>>
>>> This would duplicate all tables, do we really want this ?
>>
>> No. Keep the tables that are shared in iris_catalog_gen1.c, keep
>> platform data in iris_catalog_sm8250.c and iris_catalog_sm8550.c (and
>> later iris_catalog_sm8650.c)
> 
> This won't work, we need ARRAY_SIZE() for most of the tables

I see. Can you do it other way around: export platform-specific data 
from the iris_catalog_sm8250.c and use it inside iris_catalog_gen1.c?

> 
> Neil
> 
>>
>>>
>>> I want just to add SM8650 support, not to entirely rework the
>>> whole iris driver.
>>>
>>> Neil
>>>
>>>>
>>>>>    3 files changed, 89 insertions(+), 76 deletions(-)
>>>>>
>>>>
>>>
>>
> 


-- 
With best wishes
Dmitry